Tyres

[westo3]

Just had two new front tyres from Nat. Tyres. Bridgestone Turanza (where did they get that name from!!) Although they were the same size as the back I noticed that these were 98Y rather than 94Y. Does that make any difference, having 94Y on the back and 98Y on the front? Is it something to do with load bearing?

[Bluemarlin]

The letter Y is the speed rating of the tyre,  whuch is the same on both, and the number is the load index.  Y is rated for up to 186mph and 94 is a load of 670kg & 98 is 750kg.

[westo3]

Thanks for the info. Can I assume it will make no difference to the handling of the car

[Las Palmas]

The higher the number the stronger and probably also stiffer the tyre.

What is strange though is to get new tyres on front wheel. The new tyres should always be put on rear wheel. Unless the rear tyres were new when the front tyres got on.

[johnatg]

3 hours ago, Las Palmas said:

The new tyres should always be put on rear wheel. Unless the rear tyres were new when the front tyres got on.

Absolutely agree. Applies to both front and rear wheel drive cars. Actually, technically it should be the tyres with the best grip on the rear, but that is almost invariably the new ones.

The different load ratings should make no appreciable difference to handling, but again it would be better that the 98Y tyres are on the rear as they will be slightly stiffer.

[westo3]

many thanks for your replies. Will get the new tyres put on the back

[westo3]

I asked national tyres to change the wheels but they said because they had TPMS  they would need to change the tyres over as well. Are they correct?

[johnatg]

Nonsense. You would just need to reset the TPMS system by pressing the switch in the lower edge of the dash under the steering wheel, after the wheels have been relocated..

[Illogan]

59 minutes ago, westo3 said:

I asked national tyres to change the wheels but they said because they had TPMS  they would need to change the tyres over as well. Are they correct?

Would it appear rude if you suggested to your National Tyres shed that they should change their business to weeding Council allotments, and leave fitting vehicle tyres to professionals?

[LenT]

9 hours ago, johnatg said:

Nonsense. You would just need to reset the TPMS system by pressing the switch in the lower edge of the dash under the steering wheel, after the wheels have been relocated..

Correct.  But a couple of points to bear in mind.

The tyre pressures should first be reset to the correct levels for the front and rear axles - and this should always be done with the tyres cold.

If Nat.Tyres don’t know what the pressures should be, there’s a label fixed to one of the front door surrounds with the details.